CVE-2026-53352 signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()

In the Linux kernel, the following vulnerability has been resolved: signal: clear JOBCTLPENDINGMASK for caller in zapotherthreads When a multi-threaded process receives a stop signal e.g., SIGSTOP, dosignalstop sets JOBCTLSTOPPENDING and JOBCTLSTOPCONSUME on all threads and sets...